LG UltraFine 4K Display

Overview

With a stunning 4096-by-2304 resolution, the 21.5-inch LG UltraFine 4K Display brings your favorite photos and videos to life. So whether you’re watching a movie or editing an image, this high-performance monitor delivers immaculate 4K resolution for even the most pixel-packed visuals.

A single USB-C cable (included) provides up to 60W of charging power to your MacBook with USB-C port or MacBook Pro with Thunderbolt 3 (USB-C) ports. And three downstream USB-C ports (480 Mbps) offer additional connectivity and power to compatible devices and accessories.

Built-in stereo speakers deliver an enhanced audio experience. And with over 9.4 million pixels, your text, photos, and web pages will look sharper and more vivid than ever.

Outstanding image quality

The UltraFine 4K Display features a 21.5-inch IPS panel, P3 wide color gamut, and 500 cd/m² of brightness. And with over 9.4 million pixels — 4.5 times more than a typical 1080p HD display — the human eye can’t discern the individual pixels.

A perfect complement to your MacBook or MacBook Pro, the UltraFine 4K Display gives you plenty of room for a multitude of tools and windows, while rendering incredibly lifelike images and razor-sharp text instantaneously.

Simplified user experience

Connect the UltraFine 4K Display to your MacBook or MacBook Pro via an included USB-C cable, which supports 4K video, audio, and data simultaneously — all while supplying up to 60W of charging power to your MacBook or MacBook Pro. And with seamless macOS integration, you can control volume and brightness on your 4K display without the need for physical buttons.

Use the adjustable stand to create a personalized environment for work or play. Or disconnect the stand and mount the display on your preferred VESA arm using the provided VESA cover.

Highlights

Outstanding image quality

Over 9.4 million pixels

Built-in stereo speakers and three USB-C ports (480 Mbps)

Video, data, and power over a single USB-C cable (included)

Did You Notice?

A single USB-C cable (included) supports 4K video, stereo speakers, and up to 60W of power. And with three built-in USB-C ports, it’s the perfect match for MacBook with USB-C port or MacBook Pro with Thunderbolt 3 (USB-C) ports.

Apple Recommends For

Photo and video editing, working with a multitude of windows, and watching high-resolution videos.

What’s in the Box

LG UltraFine 4K Display

USB-C cable (1.8 m)

Power cord

Easy setup guide

VESA cover

Tech Specs

Display Size: 21.5-inch (diagonal) 4K display with IPS technology

Resolution: 4096-by-2304 with support for millions of colors

Brightness: 500 cd/m²

Color Gamut: P3 wide color gamut

Ports: One USB-C (input), three USB-C (USB 2, 480 Mbps)

Power Delivery: Up to 60W over USB-C for host power and charging

Speaker Configurations: Stereo

Power: Built-in power supply

Height: 15.3 in./38.8 cm

Width: 19.9 in./50.5 cm

Depth: 8.6 in./21.9 cm (with stand), 1.7 in./4.4 cm (without stand)

Weight: 12.3 lb./5.6 kg

System Requirements

Operating System: macOS Sierra 10.12.1 or later

Connection: USB-C–enabled Mac

Manufacturer Information

Part Number

Mfr. Part Number: 22MD4KA-B.AUSB

UPC or EAN No.: 719192609617

Warranty

Note: Products sold through this website that do not bear the Apple Brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple’s Limited Warranty does not apply to products that are not Apple-branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service.

Problems connecting two LG Ultrafines with new 15 inch MacBook Pro

Connecting two of these LG Ultrafines with a new MacBook Pro 15 inch, there are a few major problems: 1) the MacBook will not charge when the two monitors are
Connecting two of these LG Ultrafines with a new MacBook Pro 15 inch, there are a few major problems: 1) the MacBook will not charge when the two monitors are connected - it only charges after unplugging and replugging in the monitors a few times 2) only one of the monitors wakes up when the MacBook wakes from sleep - only by unplugging and replugging does the second monitor reconnect.
It also appears that the MacBook will not charge via the Thunder bolt cable if the USB-C hub is being used for other peripherals (e.g., charging my iPhone).
Considering that Apple unveiled the new MacBook Pro, showcasing a setup with two external LG Ultrafines, it's pretty disappointing that these basic functions don't work seamlessly. When you also consider there very high price for these items, it's not really acceptable.
The monitors are beautiful (when they are working) - but I'm waiting to see if Apple fixes these issues fast - otherwise the monitors get returned. Apple Support don't know anything about the problem because it's too new.

Written by Peter R from Manhattan Beach

Dec 13, 2016

276 of 309 people found this useful

Is this review useful?Problems connecting two LG Ultrafines with new 15 inch MacBook Pro

5.0 out of 5 stars

Absolutely stunning display quality at a great price - but ONLY USB-C

First of all, this is quite possibly the best 4K display I have seen in terms of color accuracy and detail. The display finish is similar to Apple's latest MacB
First of all, this is quite possibly the best 4K display I have seen in terms of color accuracy and detail. The display finish is similar to Apple's latest MacBook Pros - clear, glossy but very little reflectance - the best of both worlds. Connected to my 2016 MacBook Pro with its native USB-C connector, the display is stunning.
Another surprise? The built-in speakers on this monitor are amazingly clear, loud, and good quality, unlike most monitors. You can even feel the bass (to some extent - don't expect miracles).
Now for the downside for all who had *hoped* they could connect this to older Macs with adapters. You can't. The specifications are very clear - this monitor requires a Mac with a native USB-C connector. Apple's Thunderbolt 3 to Thunderbolt 2 adapter doesn't provide DisplayPort pass through. And third party USB-C to DisplayPort 1.2 connectors don't handle the 4096x2304 resolution of this monitor. The monitor is simply not recognized by older Macs.

Written by Paul C from West Chester

Nov 27, 2016

231 of 255 people found this useful

Is this review useful?Absolutely stunning display quality at a great price - but ONLY USB-C

5.0 out of 5 stars

Works great with MacBook 12"

Works great with 12" MacBook with included cable. Charges MacBook and functions as USB-C hub allowing connection of external drive for Time Machine, iPhone/watc
Works great with 12" MacBook with included cable. Charges MacBook and functions as USB-C hub allowing connection of external drive for Time Machine, iPhone/watch/iPad, etc. (w/purchase of additional dongle). Internal display speakers sound ok but aren't great. Display looks awesome (zero stuck pixels and no other visible flaws I can see).

Written by John V from Glendale

Nov 15, 2016

194 of 228 people found this useful

Is this review useful?Works great with MacBook 12"

5.0 out of 5 stars

LG Monitor with new MacBook Pro

I just bought this monitor for use in my office with new MacBook Pro. It works beautifully. NO set up issues whatsoever. It literally popped out of the box,
I just bought this monitor for use in my office with new MacBook Pro. It works beautifully. NO set up issues whatsoever. It literally popped out of the box, (well packaged), and plugged into the new MacBook Pro with the one cable in less than 5 minutes.
Very pleased with the product and combo so far.
Like the vertical adjustability of the LG Monitor stand.

Written by Guy P. O from North Barrington

Nov 3, 2017

5 of 5 people found this useful

Is this review useful?LG Monitor with new MacBook Pro

4.0 out of 5 stars

After Firmware-Update of the LG - all is working as expected

Hi folks,
I love the LG UltraFine. But you have to know a few things before using it without pain:
- Controlling the ambient light you have to press the CON
Hi folks,
I love the LG UltraFine. But you have to know a few things before using it without pain:
- Controlling the ambient light you have to press the CONTROL-key and change the light by the two control buttons (brighter/darker). Slider won't work.
- Installing the LG Screen Manager app will update the firmware of the LG. After the update all problems related to sleep mode are gone.
- Ambient light sensor isn't supported by macos at the moment. Perhaps with macos 10.13. (crossing fingers).
I have mine LG connected to the OWC TB 3 dock. Replaced the short TB3 cable from OWC with a 1 meter Belking TB3, which improved performance, I think so. The original 0.5 meter long cable wasn't useful for me, to short. Despite the specs of the Belkin cable (20 Gb/s instead of 40) the cable is working without a hassle. :-)
5 stars if apple will support the Ambient Light Sensor.

Written by Florian S from Muenchen

Sep 13, 2017

8 of 8 people found this useful

Is this review useful?After Firmware-Update of the LG - all is working as expected

5.0 out of 5 stars

Drop-Dead Gorgeous

I would not have believed how beautiful this monitor's screen is. Brilliant and no setup other than downloading software and firmware updates. Matched with Ma
I would not have believed how beautiful this monitor's screen is. Brilliant and no setup other than downloading software and firmware updates. Matched with Magic Keyboard and Trackpad, it makes for a very nice dock setup for my MacBook Pro. The only thing it's missing is the camera, but that's not a deal-breaker for me. Speakers are just as good as MacBook's as well.

Answer

I don't have an exact answer for you, but short of unplugging it, I don't think you can power it off
I don't have an exact answer for you, but short of unplugging it, I don't think you can power it off. I use a number of external HD's connected to the LG's USB-C connections. IF my laptop is disconnected or turned off, my externals are still spinning. I'd rather not have them running needlessly without my connected laptop, so I've got into the habit of disconnecting the HD's also. You'd think they had a power switch on the monitor! A workaround might be connecting the monitor to a power strip, and just powering off the strip, but I don't know if that would have any long-term issues for the monitor.

Answer

I was just in the Apple Store and they now use the LG displays with the Mini and MacPro. I didnt che
I was just in the Apple Store and they now use the LG displays with the Mini and MacPro. I didnt check the adapter and port used.

Best Answer:

Absolutely not - and Apple's majorly disappointed me in not stating that on the product's page. Trie
Absolutely not - and Apple's majorly disappointed me in not stating that on the product's page. Tried it - it doesn't work. Only the new 2016 products support it.

Answer

You would need an HDMI connection to use the Apple TV 4th Generation. With this Display, it wouldn't
You would need an HDMI connection to use the Apple TV 4th Generation. With this Display, it wouldn't support that HDMI connection.

Answer

I just went through the same thing - and ended up returning the Belkin TB3 Express Dock. I have put
I just went through the same thing - and ended up returning the Belkin TB3 Express Dock. I have put my gigabit ethernet adapter and backup hard drive into the USBC ports on the monitor, and then one USB-C from the monitor into my MacBook Pro with Touchbar. I don't think it is quite as fast a network connection as I get when I plug the ethernet adapter directly into the McBP - but nice to have just one cable to disconnect and go.
I originally bought the Belkin TB3 dock to enable use of a lower cost 4k monitor - but then lots of reviews on problems with reawake after sleep, disconnect/reconnect cables to refresh display, etc. Decided to put the $350 from the belkin towards the nicer LG display and let it to the USB-C hubbing for me. Seems to be working out ok.